Answer:
When you first wake up.
Explanation:
This would be before you consume anything that could cause your heart rate to go up, such as caffine, sugar, etc... Your heart rate will be at its resting BPM. (Beats Per Minute)
Another name for helper T cells is CD4+ (now options are correct), it is due to the presence of specific cell surface receptors.
<h3>What are T cells?</h3>
T cells are also called CD4- + positive cells have essential functions in the immune system by triggering adaptive immune responses.
These cells CD4- + positive cells contain specific cell surface receptors that can be identified by biochemical analyses.
In conclusion, another name for helper T cells is CD4+ (now options are correct), it is due to the presence of specific cell surface receptors.
Learn more about T cells or CD4+ cells here:
brainly.com/question/9875046
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Answer:
It's related to the Thymus
Explanation:
Usually it starts there.
